VLC H263 support

[erotavlas_turbo]

Hi,

Can VLC transcode with H263 codec? With the following command VLC create SDP file with H263p parameters. Why?

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vlc /home/tore/Scrivania/temp/prova.jpg --fake-duration 3600000 --sout '#transcode{vcodec=H263,vb=500,width=352,height=288,acodec=none}:duplicate{dst=rtp{dst=10.36.1.16,port-audio=16856,port-video=14372,sdp=file:///home/tore/Scrivania/temp/file.sdp}}'

file.sdp

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v=0 o=- 14921468247592974083 14921468247592974083 IN IP4 tore-desktop s=Unnamed i=N/A c=IN IP4 10.36.1.16 t=0 0 a=tool:vlc 1.0.2 a=recvonly a=type:broadcast a=charset:UTF-8 [b]m=video 14372 RTP/AVP 96 b=AS:500 b=RR:0 a=rtpmap:96 H263-1998/90000[/b]

[erotavlas_turbo]

Can VLC set payload type different from 96 (dynamic)? H263 requires 34 payload type...

[ILEoo]

Hi,

Dynamic payload-type is valid for h263 rtp-streaming

[erotavlas_turbo]

yes, I would like to send H263 stream. If I select vcodec=H263, VLC will create SDP file with these parameters

Code: Select all

m=video 14372 RTP/AVP 96 a=rtpmap:96 H263-1998/90000

H263 codec requires RTP/AVP 34 payload type. So how can I set payload type?

Thank you

[ILEoo]

Hi again,

Could you tell the RFC and section which you're referring when you claim that h263 _must_ use static payload type instead of dynamic payload type?

[erotavlas_turbo]

Can you find it here http://en.wikipedia.org/wiki/RTP_audio_video_profile

Seem that VLC can only sets payload type dynamic 96...

[Rémi Denis-Courmont]

VLC uses the H263-1998 payload format which does not have a static payload type number assigned.

Payload type 34 is for the plain "H263" payload format (i.e. H.263 1996 edition), which is incompatible.

[erotavlas_turbo]

Ok. So VLC is only compatible with h263p and h264. Thank